1: Mark all the null hypotheses that arenot rejectedwith a significance level of 5%:

Select one or more:

a.The expected value of "an" is the same both for males and for females.

b.The expected value of "aw" is the same both for males and for females.

c.The expected value of "cn" is the same both for males and for females.

d.The expected value of "cw" is the same both for males and for females.

e.All of the given null hypotheses are rejected.

2 Mark all the null hypotheses that arenot rejectedwith a significance level of 5%:

Select one or more:

a.The variance of "an" is the same both for males and for females.

b.The variance of "aw" is the same both for males and for females.

c.The variance of "cn" is the same both for males and for females.

d.The variance of "cw" is the same both for males and for females.

e.All of the given null hypotheses are rejected.

3. One may measure the effect of a "weapon" primer on the speed in naming a word associated with aggression by considering the difference "aw - an". Call this difference "da". Likewise, one may measure the effect of a "weapon" primer on the speed in naming a neutral word by considering the difference "cw - cn". Call this other difference "dc". An overall contrast that may be used in order to test the relation between a "weapon" primer and a target associated with aggression is the difference "da - dc". Apply the t-test in test the null hypothesis that the expectation of the contrast is zero against a two-sided alternative. The resulting p-value is: (Give an answer of the form x.xxx, i.e. with 3 significance digits)

Data used

sexaw an cw cn

1F 44.6667 44.0000 43.2409 45.1564

2F 42.7083 43.7273 46.8628 45.1278

3F 41.6957 41.8182 44.4939 43.3712

4F 34.7778 37.1364 35.2715 34.4035

5F 47.0833 44.3478 46.2482 46.3137

6F 39.7727 41.7647 42.9762 42.1587

7F 44.1250 44.6667 43.5898 43.6742

8F 41.1667 42.2917 41.5536 39.4447

9F 41.6190 45.1304 41.8030 43.1730

10F 38.7083 37.2083 38.7615 39.4606

11F 38.5833 37.5417 38.2200 38.2140

12F 38.1250 38.8750 38.6709 39.4718

13F 42.8333 43.0417 42.7684 42.6061

14F 35.7917 38.3333 36.8816 37.8219

15F 33.3158 34.3125 30.0319 29.4278

16M 43.7826 43.7619 43.5041 43.6543

17M 49.7727 54.0952 50.7373 55.4451

18M 28.5556 31.1176 28.8856 26.8333

19M 33.7059 34.1765 34.6903 31.7301

20M 38.6667 39.0435 37.7833 38.4417

21M 41.1364 40.2609 38.3768 40.0405

22M 52.9545 54.3913 54.9234 53.7414

23M 44.1250 42.6364 43.0367 42.6009

24M 44.1250 42.6364 43.0367 42.6009

25M 44.6250 42.7727 44.5337 43.3814

26M 39.8261 41.8750 42.2875 42.6104

27M 40.2174 41.1250 42.7546 42.9607

28M 30.1176 34.4118 33.6941 31.9481

29M 43.2500 42.6250 44.6222 44.6203

30M 47.9048 49.1739 49.8551 49.8009

31M 39.1304 38.0833 39.9209 39.7252

32M 42.5217 46.0833 42.6268 42.7801